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Trivalent aluminum ion detection reagent and method

A technology for detection reagents and detection methods, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. Dealing with complicated issues

Active Publication Date: 2014-01-01
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are time-consuming and complicated, and it is difficult to achieve rapid and real-time detection of aluminum pollution sites.

Method used

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  • Trivalent aluminum ion detection reagent and method
  • Trivalent aluminum ion detection reagent and method
  • Trivalent aluminum ion detection reagent and method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0102] The reagent can be prepared by mixing the above-mentioned components, and a more preferred preparation method includes steps:

[0103] providing an aqueous solution of a water-soluble silver nanoparticle precursor;

[0104] Adding a reducing agent to the above solution to obtain a composition containing silver nanoparticles;

[0105] The peptide compound is added into the composition to obtain the silver nano particle detection solution wrapped by the peptide compound.

[0106] In another preferred example, the preparation method further includes the step of: adding amino acid compounds into the detection solution.

[0107] In another preferred example, the preparation method further includes the step of: adjusting the pH value of the detection solution to 4.0-10.0, preferably, adjusting the pH value of the detection solution to 5.0-8.0.

[0108] In another preferred example, the aqueous solution of the water-soluble silver nanoparticle precursor is a commercially ava...

Embodiment 1

[0148] Example 1: Al in river water samples 3+ detection

[0149] (1) Preparation of detection solution: Take 2.0mL 20mM silver nitrate solution and add it to 187.5mL deionized water, stir for 10 minutes, add 6.4mL 0.1M sodium borohydride aqueous solution, stir for 5 minutes, then add 4.0mL 1mM L -Glutathione (reduced) aqueous solution, continuously stirred at room temperature for 2 hours to obtain L-glutathione (reduced) coated silver nanoparticle detection solution.

[0150] (2) Collection of water samples to be tested: collect water samples at a certain depth (20-50cm) at three different locations in the river with a sample collection bottle, and then adjust the pH to about 5.0 with hydrochloric acid (also can be used with hydrochloric acid The sodium hydroxide solution of equal molar concentration is adjusted back), obtains the water sample to be tested.

[0151] (3) In the silver nanoparticle detection solution containing L-glutathione (reduced type) package prepared in...

Embodiment 2

[0158] Example 2: Al in water samples of industrial and mining, electrical appliances, and electroplating plants 3+ detection

[0159] (1) Preparation of detection solution: Take 2.0mL 20mM silver nitrate solution and add it to 187.5mL deionized water, stir for 10 minutes, then add 6.4mL 0.1M sodium borohydride aqueous solution, stir for 5 minutes, add 4.0mL 1mM dipeptide at room temperature Continue stirring for 2 hours under continuous stirring to obtain the silver nanoparticle detection solution containing dipeptide-coated silver.

[0160] (2) Collection of water samples to be tested: collect water samples at intervals (2 hours) at the sampling position of the waste water discharge port, then mix equal amounts to form a mixed sample, and then use hydrochloric acid to adjust its pH to be weakly acidic (if too acidic) , using a sodium hydroxide solution with the same molar concentration as hydrochloric acid for callback), so as not to affect the detection effect, and obtain ...

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Abstract

The invention provides a trivalent aluminum ion detection reagent and method and particularly provides a trivalent aluminum ion detection reagent or kit containing an effective dose of silver nano-particles packaged by peptide compounds as well as a method for detecting trivalent aluminum ions by utilizing the reagent or the kit. The kit provided by the invention has the characteristics of rapidness in detection, simple and easy experiment condition, accurate result and the like.

Description

technical field [0001] The invention relates to the field of ion detection, in particular to a reagent for detecting trivalent aluminum ions and a method for detecting trivalent aluminum ions using the reagent. Background technique [0002] Chemical production, metallurgical industry and other emissions contain a large amount of metal ions, such as lead, aluminum, etc., causing pollution to water, soil and air, and bringing great harm to the environment. Metal pollution is different from organic pollution. Many organic pollutants can be purified and decomposed by the environment itself to reduce or eliminate pollution toxicity. However, metal pollutants are highly toxic, difficult to degrade and have enrichment properties, which are designated as the first type of pollutants. . In addition, metals can be enriched through the food chain and endanger human health. Therefore, it is imperative to develop fast, cheap, convenient and accurate methods for detecting metal ions. ...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 吴爱国杨宁宁高月霞张玉杰沈折玉
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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